Lock



Feb. 20, 1923.

' (LPfSKUBLIN. 4

LOCK. A

FILED MARx 6, 1922.

Patented Feba 20, 1923.

' rain CHARLES P.` SKUBLIN, OF CHICAGO, ILLINOIS.

Loox. l

Application led March 6, 1922.V Serial No. 541,434. V E

To all whom t may concern.'

Be it known that I, CHARLES, l). SKUBLIN, citizen of Russia, residing at Chicago, county of Cook, State of Illinois, have invented a rcertain new and useful Improve-y ment in Locks, and declarethe following tol Patent filed by me `June 2, 1921, Serialv'llo. e,

474,340. f i e l To this end one object of the invention consists in providing means whereby the lock cannot be picked by forcing its body portion-either by `a blow or other meansAN to impinge upon the floating. tumblers* housed therein to prevent their freedom of action, whereby they may be individually forced to a position in which the peripheral grooves of the floating tumblers may be made 4to register with the arc-shaped slots `in the fixed disc through which thetumblers project and rock in unlocking the swinging latch. The means employed to prevent tainpering with the floating tumblers consists in providing each tumbler with a central movable stem on which is sleeved a spring bearing at one end against the ioating tumbler and at the other end against an en,-

larged headat the end of the stem ,e-,theg

springs serving under normal conditions to shift the tumblers upon the thrust of the stems by the -application of a properly constructed key having a plurality of pins of different height respectively adapted to simultaneously give the several tumblers the necessary predetermined movement required to aligntheir peripheral grooves with .the

arc-shaped slots in the fixed discpln thel event however of the free movement of the floating tumblers being restricted in the manner previously indicated any pressure applied to the enlarged headv will force the stem through its tumbler without changing the position of the latter, thereby preventing picking the lock: through the indi-` vidual operation of the severallv movable stems. y

f With the foregoing and" other objects in view which will-appear as the description proceeds, the invention further resides Iin the combination and'arrangement ofparts 'and in the details of I'constructionhereinafter'described and claimed, it being under-` stood that changes maybe made in the pre- -cise embodimenty disclosedwithout depart-- 'ing from the spirit of the same yIn the drawings accompanyingthis speci-v fication: l e

Figure 1 is a cross-sectional view through the lock showing'the door and door casingV i in cross-section; the floating lock i'lumblersA being in their initial position. il .i l Figure 2 is a similar sectional view `showing the vkey inserted in the lock;-the floats. ing tu'mblers being shifted thereby to' aposition in' which the latch may be actuated to either lockor unlock the door.

Figure isa sectional view through the lock taken on or about line3-3 of Figure 2, showing-a fragment of the dooran'dfdoor casing. f

Figure 41 is 'a perspective viewof theflockf housing, with a portion broken away` to' v disclose an internalrib dividedtofreceive the projecting. lugs of a disc havingarcshaped slots through which` extend a plurality of floating tumblers.. y p y Figure 5 is afront elevation of 'theloclt housing indicating a yfragment ofthe door and vdoor jamb, and vin dotted lines the barrel of the loc-kho-using, and also the latch engaging-the 7socket member j of ythe door jamb, and withdrawn therefrom,

Figure 6 isla perspective view blers.

ofl the key"` for simultaneously shiftingtlie several tum- Figure 7 is a cross-sectionalview through the oscillating casting, bored to yreceivethe `floating tumblers, showing the f peripheral groove intowhich. pins project from the housing to `secure it against dislodgment lwhilepermitting oscillationtherein. 'l ,v Referringnow to the letters `of referencel 'j placed upon the drawings:

A, denotes a main housing v havihgaface plateA provided. with apertures A2 to receive'screws for securing it yto a door. yAsis l,

a divided' internal annular rib ,integral with the wall, of the housing. B, denotes adiso having lugs B adapted toprojectbetween iiov the ends ofthe divided rib of the lmain t c 'if/recaen housing, to secure the disc against rotation. C, indicates an oscillating casting having a stein C projectingr through a central aperture in the disc B. l), is a rocking. latch, pinned to the stein C" adapted to enter a socket member C2 in door jamb. A4 are pins projecting into a peripheral groove C in the casting C, to secure the latter against dislodginent While permitting it to oscillate Within the housing. E, denotes a plurality of floating tuinblers projecting through the spaced apertures 132,32, in the disc, and B3 is a relatively narronv arcshaped slot connecting the apertures B2 B2 together. E are peripheral grooves in the floatingl tumblers to permit the tuinblers to pass through the narrow arc-shaped slot B3 between the' apertures B2, B2, whereby the n casting C may rock the latch bar D from a. locked position to an unlocked position, or vice versa. F, arek slidable stems respectively projecting through each ot the floating tumblers provided with enlarged heads ll" to receive the thrust ot a spring G projecting from a socket in the end ot each oi the floating tuinblers. lil are sg'n'ings also bearing upon the enlarged head ol" the movable stems and against a shoulder Yformed by counttrboring the oscillating` casting which serve to return the stenis to their initial position when shitted by the key. I, denotes a nut secured to the projecting end oit' each of said stems overlapping the end oli the floating` tumbler-s to secure the latter against dislodgrnent. K, is a cap plate covering the tace ot the oscillating casting secured to the latter by pins l projecting` through the flange ot the cap into holes bored into the body ot the casting. K2 are apertures in the cap plate to receive a plurality ot pins L of relatively dilierent length Aprojecting troni the key L to operate the lock that'its latch D may engage the plate M, or' the door casing. Y

Having indicated the several parts by relierence letters the construction and operation ot the device Will be readily understood:

llVhen it is desired to actuate the swinging latch the key L is applied (see Figure so that its pins L9 of varying length bear'upon the enlarged heads li" or" the slidable stemsa respectively projecting through the several floating tuinblers. The pressure ot the pins against the enlarged heads of the stems. serves to shift the latter together with the floating tumblers Jfrom the position shown in Figure l to thatindicated in Figure 2 in which the peripheral grooves ot the floating tumblers register With the arc-shapedv slots between the apertures B2 B2 in the disc. The oscillating casting C and its swinging latch D, may non7 be rocked from an unlocked position to a locked position or vice versa.

In the event of an unauthorized person,

attempting to individually adjust the floating tuinblers to register with the arc-shaped slots in the stationary disc, by distorting the oscillating casting in which. t rey are housed either by a bleu7 ot a hammer or other means, so that the tuinblers niayl be held by friction against the Wall ot the casting when individually moved to secure registration with the arc-shaped slotsit Will be Yfound that the pressure applied to the enlarged heads ot the slidable stems lll, will cause the latter to slide through the tuinhlers Without changing the position oi the tu1nblers,- (see dotted lines in Figure l) the pressure of the springs H not being` suhicient to torce the tumblers to more with the stems as when operated under norinal conditions.

Having thus described iny invention What l claim is:

l. ln a lock; a housing; a disc secured against rotation Within the housing, provided with a plurality of arc-shaped slots, the ends ot each slot terminating in air enlarged bore open thereto; an oscillating casting sleeved within the housing having a spindle projecting through a central bore in the disc; a swinging latch secured to the spindle to engage a locking member; a plurality or' floating tumblers housed in bores in the oscillating casting and adapted to extend through the bores in the arc-shaped slotsl` having peripheral grooves adapted to register with the arc-shaped passage between said bores ot the disc; a slidable stein extending centrally through each ot' the floating turiblers; a cap plate secured to thc oscillating casting provided with a plurality ot apertures to receive the projecting lugs ot an operating key; springs incuntednpon the slidable stems adapted to bear against the tuinbler whereby upon applying prei sure to the Steins the tuinbl will be shi'lted a corresponding degree and an operating` lrey provided with a plurality ot' projecting lugs adapted to simultaneously bear upon the ends ot the several slidable stems, whereby the floating tuniblers may be adjusted that their peripheral grooves may register with the arc-shaped slots in the disc.

ln a lock; a housing; a disc secured against rotation Within the housing provided ivith a plurality oli' arc-shaped slots, each arc-shaped slot tern'iinating inI its ends in an enlarged bore opening into the slot; an oscillating casting sleeved Within the housing having a spindle proiecting` through a central bore in the disc; a latch secured to the spindle; a plurality ot floating tumblers housed in bores in the oscillating casting7 having peripheral grooves adapted to register With the arc-shaped slots of the disc; a slidable stein extending centrally through each ot the Heating tumblers fitted with' an enlarged head; a cap plate secured to the oscillating casting provided with a plurality of apertures to receive the projecting lugs ot an operating key; springs mounted upon the slidable stems adapted to bear against the enlarged head of the stein and againstthe tuinblers and springs surrounding said last named springs housed in counterbores in the oscillating casting adaptedv to bear against the enlarged head of the Steins, ywhereby the stems may be returned to their initial position following the adjustmentof the'iioat-` `ing tui'ublers that the latter may register with the aro-shaped slots in the disc.

3. In a lock; a housing; a vdisc secured against rotation within the housing, provided with a plurality of aro-shaped slots having enlarged bores in each end ofthe slot; an oscillating casting sleeved withinv the housing having a spindle vprojecting through a central bore in the disc; a swing-l ing latch bar secured to theispindle; means for securing the oscillating casting against displacement; a plurality of floating tuinblers housed in bores formed in the osycilllating casting, said floating tumblers having peripheral grooves adapted to register with the arc-shaped slots of the disc; a slidable stem extending centrally through each of the tumblers fitted with an enlarged head; nuts fitted to the end of the projecting stems overlapping the tuinblers; a cap plate secured to the oscillating casting provided with a pluralityof-apertures adapted to receive the projecting lugs of kan oper-- ating key; springs mounted .uponthe slid?v able stems adapted to b`earagainst-the enlarged head of the stem and against the tumblers; springs surrounding said lastl named f springs housedin the vcounterbores` in the oscillating casting, adapted lto bear against the enlarged head of the stems, andl an operating key having a plurality ot projecting lugs of relatively different length adapted to project through the apertures in the cap plate, whereby'they may bear upon the enlargedheads of the slidable steiiis to simultaneously adjust the floating tum" blers.

4. In a lock; a housing having; a divided internal rib; a disc provided with lugs` eX- tending between the divided rib, whereby the disc may be secured against rotation, said disc provided with a plurality of arcshaped slots terminating at each end iii-an enlarged bore; an oscillating casting sleeved within the housing, having a spindle projecting through a central bore inthe disc;

a latch har secured tothe spindle; aplurality of floating tumblers housed` in bores in the oscillating casting adapted to project through the enlarged bore in eachol the slots, said floating tumblers provided with peripheral grooves adaptedto register with the relatively narrow arc-shaped slots connecting the bores in the disc; a slidable stem f extending centrally through each lofthe tum- `hlers; a cap plate 'fitted tothe oscillating casting provided with 21V-plurality ofv apertures, and a keyfhaving. projectinglugs' adapted to extend through said apertures in the cap plate to actupon thestems, whereby the tuinblers maybe adjusted.

5. in a lock; a housing; afdisc" secured r .75-v

against rotation within the housing, provided withaplurality of aro-shaped slots slot; an oscillating casting sleeved `within j the housing having a spindle projecting through a central bore in the disc, `said cast# ,ing having a' peripheral y groove; pins eX? tending from the housin-ginto the periph# U eral groove of the oscillating casting; a l

swinging latch bar secured to the spindlev of the oscillating casting;` a pluralityof the 'oscillating' casting, said floating tuin. blers having peripheral grooves adapted 'to disc; aslidable stem` extending centrally through each of the tumblersl tted with anl enlarged head nuts littedto the yend of the i register with the arc-shapedfslots ofthe ,i

projecting stem overlapping the.,tumblers;-

a cap'plate secured to the oscillating casting provided with a plurality of apertures adapted to receive the projecting lugs ofan* operating key; vsprings 4mountedfupon'jthe f` slidable' stems adapted to bear against the venlarged,head vof' the ,j stein and` against the jtumblers; springs surrounding 'said' last named springs housed in the counterbores inV the oscillating casting, adapted to bear i against theenlarged'head of the stems, and an operating key having a plurality of pro'- .jecting lugs of. relatively ldifferent length adapted to project through the apertures in l lthe cap plate. whereby they may vbear upon the enlargedheads of the'slidable stern to" simultaneouslyl adjust the floating' tumblers. j

In testimony whereof, I sign thisvspeciflcation in the presenceoftwo witnesses.

Witnesses: 4

Ji'. Y, HORN, y i GEORGE W. LnEf v 'l CHARLES; P. sKuBpniii; j 

